On Fri, 24 Jun 2005, David Groep wrote:
> Hi all,
>
> Jeff Templon wrote:
> > A couple of mysterious things, see included message.
> > ===========
> > Davide Salomoni wrote:
> >
> > And while I was looking on bosheks, I found these in /var/log/messages:
> >
> > Jun 24 10:07:37 bosheks kernel: application bug: edg-wl-in.ftpd(8787)
> > has SIGCHLD set to SIG_IGN but calls wait().
> > Jun 24 10:07:37 bosheks kernel: (see the NOTES section of 'man 2 wait').
> > Workaround activated.
> >
> > is this something you've seen before?
>
> This is a false-positive error message generated by a bug in the kernel
> 2.4.21-27.0.2 shipped with RHEL U4. See also
> https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=140552
It is not exactly that bug that is responsible for the mess;
for details see my addition to that bug report, though.
> It has been resolved in U5 (according to RH bugzilla). Nothing to worry
> about and no reason to "fix" edg-wl-in.ftpd.
I certainly claim the bug is RedHat's, and I would like to avoid having
to code possibly non-trivial workarounds for the various gridftpd that
are used in LCG-2.
> > Jeff Templon wrote:
> > > while looking for something else on hooimijt, I found these in
> > /var/log/messages
> > >
> > > Jun 22 14:36:28 hooimijt named[5210]: client 192.16.186.252#56759:
> > error sending response: host unreachable
> > >
> > > I remember seeing these often in the daily logwatch reports.
> > Interesting thing is the following: at least today, these messages ONLY
> > came from RB machines. bosheks & boswachter. no others involved.
>
> This seems like a local problem, since it previously also accured from
> worker nodes and CEs (although RB's are the dominant contribution).
Which program would generate such messages on the WNs?
A Classic SE obviously has them too, as will a DPM SE.
> I'll look into it when I'm actually back from my vacation, but they
> are harmless.
...but (quite) a nuisance.
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